News tagged with sierra nevada

Video: How the Dream Chaser was built

The origins of Sierra Nevada Corporation's Dream Chaser go back over 50 years to the US Air Force's and NASA's research into lifting body concepts and the X-20 Dyna-Soar, so this winged, lifting-body spacecraft ...

dateJan 29, 2014 in Space Exploration
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California's controlled fires boost biodiversity

In certain ecosystems, such as the mixed-conifer forests of the Sierra Nevada region of the western United States, fires are a natural and essential occurrence for maintaining forest health. However, for many decades, resource ...

dateNov 23, 2010 in Ecology
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